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- r0: run_1_thread
- r1: run_2_threads
- r2: run_4_threads
- r3: run_8_threads
- r4: run_10_threads
| Metric | r0 | r1 | r2 | r3 | r4 |
|---|
| Total Time (s) | 161.75 | 86.81 | 51.95 | 32.64 | 28.55 |
| Max (Thread Active Time) (s) | 161.70 | 86.66 | 51.82 | 32.60 | 28.50 |
| Average Active Time (s) | 161.70 | 83.37 | 46.58 | 26.38 | 22.11 |
| Activity Ratio (%) | 100.0 | 96.0 | 89.7 | 80.9 | 77.5 |
| Average number of active threads | 1.000 | 1.921 | 3.587 | 6.465 | 7.742 |
| Affinity Stability (%) | 100.0 | 99.8 | 99.6 | 99.2 | 99.1 |
| GFLOPS | 4.667 | 8.696 | 14.530 | 23.124 | 26.425 |
| Time in analyzed loops (%) | 100.0 | 97.0 | 92.1 | 83.9 | 80.3 |
| Time in analyzed innermost loops (%) | 96.4 | 93.5 | 88.9 | 80.8 | 77.4 |
| Time in user code (%) | 100.0 | 97.0 | 92.1 | 83.9 | 80.3 |
| Compilation Options Score (%) | 100 | 100 | 100 | 100 | 100 |
| Array Access Efficiency (%) | 95.1 | 95.1 | 95.2 | 95.2 | 95.3 |
|
| Potential Speedups |  |
| Perfect Flow Complexity | 1.00 | 1.00 | 1.00 | 1.00 | 1.00 |
| Perfect OpenMP + MPI + Pthread | 1.00 | 1.00 | 1.00 | 1.00 | 1.01 |
| Perfect OpenMP + MPI + Pthread + Perfect Load Distribution | 1.00 | 1.07 | 1.21 | 1.47 | 1.61 |
| Scalability - Gap | 1.00 | 1.07 | 1.28 | 1.61 | 1.77 |
| No Scalar Integer | Potential Speedup | 1.02 | 1.02 | 1.02 | 1.02 | 1.02 |
| Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 |
| FP Vectorised | Potential Speedup | 1.90 | 1.85 | 1.78 | 1.66 | 1.62 |
| Nb Loops to get 80% | 1 | 1 | 1 | 1 | 1 |
| Fully Vectorised | Potential Speedup | 7.45 | 6.25 | 4.94 | 3.65 | 3.28 |
| Nb Loops to get 80% | 4 | 4 | 4 | 3 | 3 |
| Only FP Arithmetic | Potential Speedup | 1.08 | 1.08 | 1.07 | 1.07 | 1.06 |
| Nb Loops to get 80% | 3 | 3 | 3 | 3 | 3 |
| Source Object | Issue |
| ▼kmeans-icpx-O3-aggressive-soa– | |
| ▼main_soa.cpp– | |
| ○ | |
| Source Object | Issue |
| ▼kmeans-icpx-O3-aggressive-soa– | |
| ▼main_soa.cpp– | |
| ○ | |
| Source Object | Issue |
| ▼kmeans-icpx-O3-aggressive-soa– | |
| ▼main_soa.cpp– | |
| ○ | |
| Source Object | Issue |
| ▼kmeans-icpx-O3-aggressive-soa– | |
| ▼main_soa.cpp– | |
| ○ | |
| Source Object | Issue |
| ▼kmeans-icpx-O3-aggressive-soa– | |
| ▼main_soa.cpp– | |
| ○ | |
| r0 | r1 | r2 | r3 | r4 |
| Experiment Name | K-Means scalability icpx-O3-aggressive-soa 100000000 | K-Means scalability icpx-O3-aggressive-soa 100000000 | K-Means scalability icpx-O3-aggressive-soa 100000000 | K-Means scalability icpx-O3-aggressive-soa 100000000 | K-Means scalability icpx-O3-aggressive-soa 100000000 |
| Application | ./kmeans/kmeans-icpx-O3-aggressive-soa | same as r0 | same as r0 | same as r0 | same as r0 |
| Timestamp | 2025-07-04 11:48:52 | same as r0 | same as r0 | same as r0 | same as r0 |
| Experiment Type | Sequential | OpenMP; | same as r1 | same as r1 | same as r1 |
| Machine | otterfall | same as r0 | same as r0 | same as r0 | same as r0 |
| Architecture | x86_64 | same as r0 | same as r0 | same as r0 | same as r0 |
| Micro Architecture | SKYLAKE | same as r0 | same as r0 | same as r0 | same as r0 |
| Model Name | Intel(R) Xeon(R) Silver 4210R CPU @ 2.40GHz | same as r0 | same as r0 | same as r0 | same as r0 |
| Cache Size | 14080 KB | same as r0 | same as r0 | same as r0 | same as r0 |
| Number of Cores | 10 | same as r0 | same as r0 | same as r0 | same as r0 |
| Maximal Frequency | 3.2 GHz | same as r0 | same as r0 | same as r0 | same as r0 |
| OS Version | Linux 6.15.3-arch1-1 #1 SMP PREEMPT_DYNAMIC Thu, 19 Jun 2025 14:41:19 +0000 | same as r0 | same as r0 | same as r0 | same as r0 |
| Architecture used during static analysis | x86_64 | same as r0 | same as r0 | same as r0 | same as r0 |
| Micro Architecture used during static analysis | SKYLAKE | same as r0 | same as r0 | same as r0 | same as r0 |
| Compilation Options |
kmeans-icpx-O3-aggressive-soa: clang based Intel(R) oneAPI DPC++/C++ Compiler 2024.2.1 (2024.2.1.20240711) --driver-mode=g++ --intel -I . -MMD -MP -march=native -std=c++14 -g -fno-omit-frame-pointer -fiopenmp -O3 -x Host -funroll-loops -ffast-math -qopt-report=5 -c -o main_soa.o main_soa.cpp -fveclib=SVML -faltmathlib=SVML -fheinous-gnu-extensions | same as r0 | same as r0 | same as r0 | same as r0 |
| Number of processes observed | 1 | same as r0 | same as r0 | same as r0 | same as r0 |
| Number of threads observed | 1 | 2 | 4 | 8 | 10 |
| Frequency Driver | intel_pstate | same as r0 | same as r0 | same as r0 | same as r0 |
| Frequency Governor | powersave | same as r0 | same as r0 | same as r0 | same as r0 |
| Huge Pages | always | same as r0 | same as r0 | same as r0 | same as r0 |
| Hyperthreading | off | same as r0 | same as r0 | same as r0 | same as r0 |
| Number of sockets | 1 | same as r0 | same as r0 | same as r0 | same as r0 |
| Number of cores per socket | 10 | same as r0 | same as r0 | same as r0 | same as r0 |
| MAQAO version | 2025.1.0 | same as r0 | same as r0 | same as r0 | same as r0 |
| MAQAO build | 1cd8232d3b2009bc695f526f903b266bda9bb996::20250623-181852 | same as r0 | same as r0 | same as r0 | same as r0 |
| Comments | Intel Xeon 42104R (Cascade Lake CPU), 1-10 threads runs | same as r0 | same as r0 | same as r0 | same as r0 |